The Talismen don’t actually ‘work’?

Lemme start with, idk if this has been said before. We know for a fact the monsters love fuckin w people, just breaking their spirits. Watching them hold onto a single thread and then snipping the thread. I feel like they might be doing that with the talismen? Because its something they would do. Build up the hope of the talisman being their protector to freely wander in a house or car during the night and not worry too much about a monster getting in

Let me kinda get to my point instead of rambling lol. The reason i think this is plausible is when that one dumbass let the monster in at colony house, sure he opened the winder for her, but the bathroom door was still shut. So she was in that bathroom and technically if the talismen worked how we typically think theyd work, she shouldnt have been able to leave that bathroom, yes? And the reason why im nearly sure she wouldnt have been able to leave the bathroom is cause not very much later fatima and elis locked themselves inside those two door entryway thingys? If the monsters cant get in through that why would she be able to leave that bathroom? Because theyre just messing with the humans picking out which ones get to live or not while also deciding what they want to allow the humans to believe.

HOWEVER they do talk about keeping the doors shut AND locked to stay safe. So i do think maybe the plothole to this theory is the bathroom door was shut, but not locked, whereas maybe fatima locked the entryway doors?